Inverted-burner gas-lamp.



L. B. LONDON.

INVEBTED BURNER GAS LAME,

APPLICATION FILED JAN.17, 1914.

- 1,103,36o Paten1;ea-Ju1 14,1914.

A TTORIVEY full, clear, and

PATENT ornios.

LO UIS B. LONDON, OF NEW YORK, N. Y.

INVEBTED-BURNER GAS-LAMP.

Specification of Letters Patent.

Patented July '11, 1914i.

Application filed January 17, 1914. Serial No. 812,748.

To all whom it may concern lie it known that I, Louis B. Loreen, a citizen of the United States, residing in New York city, county .and State of New York, have invented certain new and useful lmprovemcnts in Inverted-Burner Gasllamps, of which the following is such a exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to inverted burner lamps, and the improvements have reference particularly to the means for securing the globe-holder or crown to the gas pipe and to the spring-clamp for retaining the globe in the holder.

I have illustrated my improvements in the accompanying drawings, wherein:

Figure 1 is a vertiail, central, sectional view of a gas lamp provided with my improven'ients Fig. 2 is a horizontal, sectional view of the lamp, the plane of the section being taken through the rim of the holder. Fig. 3 shows ahorizontal. sectional view of the gas pipe, the surrounding flange of the holder and the surrounding metal clamp, before the parts are compressed together, the detached view at the right being an edge view of the metal clamp.

Referring to the drawings in which like iuunbers of reference designate like parts throughout, 1 is the gas pipe for supplying the lamp and the lower end of this pipe is provided with a thread 2, for receiving the s burner, which is not shown. Upon the gas pipe is mounted the globe-holder 3, which'is provided with a central. opening 1, having a downwardly projecting flange 5, the gas pipe passing through the opening and being surrounded by the flange. Around the flange is placed a metal clamp t), the initial form of which is that of a flat ring, as shown in Fig. 3.. The gas pipe and likewise the surrounding flange is also of circular form when the ring-clamp is first applied to it and before the clamp iscompressed, as indicated in Fig. 3. By means of a suitablecompressing tool the metal clamp 6, is compressed or pinched in an inward direction toward the axis of the gas pipe and from a plurality of points, the number of such points here shown being three, and when so compressed from three equidistant points, the metal clamp is distorted into a triangular form, and it thereby compresses both the flange and the gas pipe soas to distort both of them from their original circular forms. In this way the metal clamp securely fastens the holder in permanent position on the gas pipe without the use of threads or solder. The flange 5, serves also to protect the compa 'atively thin metal of which the pipe is made. This makes a more durable construction than those heretofore used and it cheapens the cost of manufacture. All possibility of the holder becoming loose is thus eliminated and this simple construction withstands the high heat to which the parts are subjected without in any way becoming loosened.

The holder is provided with a downwardly extending gallery or rim 7, in one side of which is formed two horizontal slots 8 and 9, opposite to which are two horizontal slots 8 and 9, each pair of slots being spaced a slight distance from each other by an intervening portion of metal 11 and 11, respecis made of a piece of resilient wire bent upon itself into substantially a circular form with the central portion 18, thereof bent slightly at the points 11 and 15, and lying to the outside of the gallery and passing thence through the slots 8 and 9, withthe curved sides 16 and 17 of the spring-wire lying within the gallery, and the respective ends 18 and 19 of the wire crossing each other, and then passing outwardly through the slots 8 and 9 with the free ends bent into the handles 20 and 21, respectively. This wire clamp is opened to receive the globe by ,drawing the two handles 20 and 21, together to expand the loop of wire, which upon being released springs back and clamps the contained globe as indicated. in the drawings. The portion of metal 11 lying between the slots 8 and 9, limits the movement of the handles 20 and 21, toward each other, and the portion'of metal 11, between the two slots 8 and 9, serves to anchor thelooped wire spring and retain it in place without interfering with the resiliency of the wire.

It will be noted that in this construction an extensive portion 13, of the sprin wire, and which is the central portion of t e bent form and the springgiving part, lies to the exterior of the gallery and is thus protected from the high heat arising from the gas tively. The clamp for holding the globe 12,

lit?

flame. By .virtue of this particular arrangement thevlife of the spring Wire clampis much increased.

' -Having thus described myLinvent-ion, What I claim and desire to secure'by Letters Patent is; i

' 1. In an inverted burner gas lamp, the

combination of a gas pipe, a globe-holder provided with a central opening having a ftoward the axis of the pipe, the said clamp,

projection andpipe being permanently distortedand bent'irrvvardly out of form and thereby clamping the said parts securely together, substantially as described.

'2. In an inverted burner gas lamp, the

combination of a gas pipe, a-globe-holder parts securely together, substantially as de scribed.

provided with a central flanged opening In testimony whereof, I have hereuntoset my hand in the presence of the two su scribing Witnesses. p LOUIS B. LONDON. Witnesses: a V J H. I. Ai'mLMAN, E. W.

copiespf this patent may be ibtelned for five cents each, by addressing the qomniissloner of Patents,

., Washington, D. G. 

